Gas Phase Reactivity of Charged Peptide and DNA Radicals: Fundamentals and Applications. Radicals derived from the "molecules of life", proteins and DNA, play both beneficial (e.g. enzyme catalysis) and deleterious roles (e.g. protein and DNA damage associated with disease). Two electrospray ionisation mass spectrometry approaches have been discovered to generate charged radicals of related models systems (e.g. peptides and nucleobases). The gas phase chemistry of these species is a largely unch ....Gas Phase Reactivity of Charged Peptide and DNA Radicals: Fundamentals and Applications. Radicals derived from the "molecules of life", proteins and DNA, play both beneficial (e.g. enzyme catalysis) and deleterious roles (e.g. protein and DNA damage associated with disease). Two electrospray ionisation mass spectrometry approaches have been discovered to generate charged radicals of related models systems (e.g. peptides and nucleobases). The gas phase chemistry of these species is a largely unchartered area! We will examine the fundamental chemistry (unimolecular and bimolecular reactions) of these systems and build upon some exciting preliminary results which suggest potential applications (e.g. as a proteomics tool to sequence and distinguish between leucine and isoleucine residues in peptides).Read moreRead less
Gas Phase Studies to Catalyze a Better Understanding of Metal Reactivity. The proposed research will increase knowledge of fundamental questions related to the mechanisms of catalysis and metal ion reactivity. The insights gained will be an important addition to the knowledge base of our culture, both nationally and in the wider international context. We note that research into the behaviour and design of catalysts is a burgeoning field which reflects the great importance of this area in the int ....Gas Phase Studies to Catalyze a Better Understanding of Metal Reactivity. The proposed research will increase knowledge of fundamental questions related to the mechanisms of catalysis and metal ion reactivity. The insights gained will be an important addition to the knowledge base of our culture, both nationally and in the wider international context. We note that research into the behaviour and design of catalysts is a burgeoning field which reflects the great importance of this area in the international scientific community. Our proposal will add to fundamental knowledge and may also result in practical applications. More importantly, we will train and equip talented young people with a spectrum of skills which will make them well placed to meet the demand for highly skilled professional scientists.Read moreRead less
Controlled Supramolecular Assembly in Aqueous Molecular and Macroscopic Systems. This project uses benign and mainly bio-degradable materials to produce hydrogels which are remarkable new materials containing at least ninety-eight percent water which may be made into films. Similar films are proving to be valuable in covering wounds, particularly serious burns, and in greatly improving wound healing and tissue growth. They may also be useful in new coating and aircraft de-icing technologies. The ....Controlled Supramolecular Assembly in Aqueous Molecular and Macroscopic Systems. This project uses benign and mainly bio-degradable materials to produce hydrogels which are remarkable new materials containing at least ninety-eight percent water which may be made into films. Similar films are proving to be valuable in covering wounds, particularly serious burns, and in greatly improving wound healing and tissue growth. They may also be useful in new coating and aircraft de-icing technologies. These environmentally friendly materials are likely to find a multitude of uses as their development progresses. Young Australians involved in the project will gain experience in cutting edge science, its practical applications, and in international collaboration - a training essential to Australia's future prosperity.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0346733
Funder
Australian Research Council
Funding Amount
$399,466.00
Summary
Ultra-Sensitive CCD Diffractometer with High Intensity X-ray Photon Generator. X-ray photon diffraction from single crystals provides the most accurate, precise and detailed three dimensional chemical structure information. It is however often difficult to obtain crystals of complex chemical assemblies, such as those used in nanotechnology and photon technology, suitable for diffraction analysis using equipment currently available at Australian chemical crystal structure facilities. The collab ....Ultra-Sensitive CCD Diffractometer with High Intensity X-ray Photon Generator. X-ray photon diffraction from single crystals provides the most accurate, precise and detailed three dimensional chemical structure information. It is however often difficult to obtain crystals of complex chemical assemblies, such as those used in nanotechnology and photon technology, suitable for diffraction analysis using equipment currently available at Australian chemical crystal structure facilities. The collaborating institutions seek to overcome this problem by purchasing a high sensitivity CCD area detector coupled to an intense laboratory source of X-ray photons. The installation of the equipment would be the first of its kind at an Australian facility and only the fourth worldwide.Read moreRead less
Anion Binding and Sensing With Self-Assembled Metallo-Supramolecular Assemblies. Anions are of particular significance in several areas relating to the day-to-day lives of Australians; for example as contaminants in waterways and nuclear waste streams, as indicators of chemical weapons, and as antagonists in biological systems. The proposed research programme will investigate a relatively unexplored approach to binding and sensing anions. This will further research in the area of supramolecular ....Anion Binding and Sensing With Self-Assembled Metallo-Supramolecular Assemblies. Anions are of particular significance in several areas relating to the day-to-day lives of Australians; for example as contaminants in waterways and nuclear waste streams, as indicators of chemical weapons, and as antagonists in biological systems. The proposed research programme will investigate a relatively unexplored approach to binding and sensing anions. This will further research in the area of supramolecular chemistry, providing additional research expertise in this rapidly progressing area of the chemical sciences. In terms of Breakthrough science the targeted assemblies will shed further light on self-assembly processes involving ligands with different domains, placing Australian research at the forefront of such investigations.Read moreRead less
Internally decorated discrete Metallo-supramolecular Assemblies and infinite Metal-Organic Frameworks as molecular containers. In the macroscopic world, containers are used to hold, provide physical protection, or create a modified environment for their contents. This project will result in the synthesis of novel molecular container materials that provide decorated internal surfaces capable of selectively binding chemical species. In addition to the breakthrough scientific benefits of establish ....Internally decorated discrete Metallo-supramolecular Assemblies and infinite Metal-Organic Frameworks as molecular containers. In the macroscopic world, containers are used to hold, provide physical protection, or create a modified environment for their contents. This project will result in the synthesis of novel molecular container materials that provide decorated internal surfaces capable of selectively binding chemical species. In addition to the breakthrough scientific benefits of establishing the fundamentals of these systems, the binding of chemicals, which are environmental contaminants, will provide the grounding for applications that will contribute to the national priority of 'Frontier technologies'. Furthermore, this research will lead to the training of the next generation of Australian scientists by quality international researchers.Read moreRead less
Molecular UV-A Sunscreen Filters: A Systematic Chemical Study. Australia has the world's highest melanoma and and non-melanoma skin cancer rate, with the latter representing the highest healthcare cost of any cancer. Current sunscreen formulations provide limited protection against solar ultraviolet-A radiation. This project is designed to improve this situation through developing new sunscreen filters for improved protection against ultraviolet-A radiation.
Studies of metal compounds containing carbon chains - approaches to novel materials. There is an increasing need to design functional devices on the molecular scale ("nanotechnology"). We are developing the chemistry of compounds which contain chains of up to 12 carbon atoms to allow electronic communication between metal centres attached to each end. This projects seeks to extend this work, to discover new and more effective compounds, and to develop the associated chemistry to provide synthese ....Studies of metal compounds containing carbon chains - approaches to novel materials. There is an increasing need to design functional devices on the molecular scale ("nanotechnology"). We are developing the chemistry of compounds which contain chains of up to 12 carbon atoms to allow electronic communication between metal centres attached to each end. This projects seeks to extend this work, to discover new and more effective compounds, and to develop the associated chemistry to provide syntheses of novel compounds of potential use in the fine chemicals industry. Extensive collaboration with French colleagues exists and will continue.Read moreRead less
All-carbon molecules in metal complexes - novel materials and intermediates. An important requirement for the future is new materials with unusual properties that can be controlled. The need for ever smaller electronic devices requires knowledge about appropriate properties (particularly electronic) of molecules designed to model devices such as wires, switches, etc. This work seeks to design, measure and evaluate such molecules, which are based on chains of carbon atoms linking metal centres ....All-carbon molecules in metal complexes - novel materials and intermediates. An important requirement for the future is new materials with unusual properties that can be controlled. The need for ever smaller electronic devices requires knowledge about appropriate properties (particularly electronic) of molecules designed to model devices such as wires, switches, etc. This work seeks to design, measure and evaluate such molecules, which are based on chains of carbon atoms linking metal centres which can gain or lose electrons readily. As the electronic structure changes, so do the physical (photo, solid-state) and chemical properties (reactivity). Improved understanding of these features will benefit development of advanced technology and new materials.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0346515
Funder
Australian Research Council
Funding Amount
$507,000.00
Summary
Fluorescence Detector for the Australian National Beamline Facility. X-ray absorption spectroscopy (XAS) is an extremely important synchrotron radiation tool for determining the local structure around an X-ray absorbing atom. This has many applications in the study of materials, minerals, metal complexes, and metalloproteins and can often be used to obtain information that is not available by other techniques, because structural information can be obtained in the solid or solution state and in ....Fluorescence Detector for the Australian National Beamline Facility. X-ray absorption spectroscopy (XAS) is an extremely important synchrotron radiation tool for determining the local structure around an X-ray absorbing atom. This has many applications in the study of materials, minerals, metal complexes, and metalloproteins and can often be used to obtain information that is not available by other techniques, because structural information can be obtained in the solid or solution state and in mixtures. The current proposal is aimed at introducing new technology into the Australian National Beamline Facility that will greatly improve the quality and quantity of experiments that can be performed and extend studies into dilute solutions and protein samples.Read moreRead less